Chart B Air Bag Warning Lamp Comes on Steady

CIRCUIT DESCRIPTION

When the ignition switch is first turned to "RUN," "Ignition 1" voltage is applied from the "IGN 1" fuse to the "AIR BAG" warning lamp which is connected to "SIR indicator," terminal "7." The "AIR BAG" fuse applies system voltage to the "Ignition 1" input, terminal "10." The SDM responds by flashing the "AIR BAG" warning lamp seven times. If "ignition 1" is outside of the normal operating voltage range, the "AIR BAG" warning lamp will come "ON" solid with no DTCs set.

CHART TEST DESCRIPTION

Numbers below refer to circled numbers on the diagnostic chart.

1. This test checks for an open in the "Ignition circuitry to the SDM.

2. This test checks for proper voltage to the SDM.

3. This test determines whether the malfunction is a short to ground in CKT 358.

4. If the SDM harness connector CPA is installed incorrectly or not installed, the "AIR BAG" warning lamp will he "ON" steady.

5. An open "AIR BAG" fuse would cause the "AIR BAG" warning lamp to come "ON" steady.

6. This test checks for an open in the "Ignition 1" circuit.

7. This checks whether a short to ground caused the "AIR BAG" fuse to open.

8. This test determines whether a short to ground is due to a short in the wiring.